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diff -up ./src/fuser.c.ori ./src/fuser.c
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--- ./src/fuser.c.ori 2017-03-25 00:17:53.169339912 +0100
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+++ ./src/fuser.c 2019-08-23 11:58:55.268835489 +0200
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@@ -187,6 +187,9 @@ scan_procs(struct names *names_head, str
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pid_t pid, my_pid;
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uid_t uid;
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+ if ( (ino_head == NULL) && (dev_head == NULL) )
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+ return;
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+
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if ((topproc_dir = opendir("/proc")) == NULL) {
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fprintf(stderr, _("Cannot open /proc directory: %s\n"),
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strerror(errno));
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@@ -1860,6 +1863,10 @@ scan_knfsd(struct names *names_head, str
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char *find_space;
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struct stat st;
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+ if ( (ino_head == NULL) && (dev_head == NULL) )
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+ return;
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+
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+
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if ((fp = fopen(KNFSD_EXPORTS, "r")) == NULL) {
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#ifdef DEBUG
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printf("Cannot open %s\n", KNFSD_EXPORTS);
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@@ -1906,6 +1913,10 @@ scan_mounts(struct names *names_head, st
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char *find_space;
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struct stat st;
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+ if ( (ino_head == NULL) && (dev_head == NULL) )
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+ return;
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+
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+
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if ((fp = fopen(PROC_MOUNTS, "r")) == NULL) {
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fprintf(stderr, "Cannot open %s\n", PROC_MOUNTS);
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return;
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@@ -1949,6 +1960,9 @@ scan_swaps(struct names *names_head, str
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char *find_space;
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struct stat st;
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+ if ( (ino_head == NULL) && (dev_head == NULL) )
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+ return;
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+
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if ((fp = fopen(PROC_SWAPS, "r")) == NULL) {
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/*fprintf(stderr, "Cannot open %s\n", PROC_SWAPS); */
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return;
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